cbrt, cbrtf, cbrtl
Calculates the cube root.
double cbrt(
double x
);
float cbrt(
float x
); // C++ only
long double cbrt(
long double x
); // C++ only
float cbrtf(
float x
);
long double cbrtl(
long double x
);
Parameters
- x
Floating-point value
Return Value
The cbrt functions return the cube-root of x.
Input |
SEH Exception |
_matherr Exception |
|---|---|---|
± ∞, QNAN, IND |
none |
none |
Remarks
Because C++ allows overloading, you can call overloads of cbrt that take float or long double types. In a C program, cbrt always takes and returns double.
Requirements
Function |
C header |
C++ header |
|---|---|---|
cbrt, cbrtf, cbrtl |
<math.h> |
<cmath> |
For additional compatibility information, see Compatibility.
Example
// crt_cbrt.c
// Compile using: cl /W4 crt_cbrt.c
// This program calculates a cube root.
#include <math.h>
#include <stdio.h>
int main( void )
{
double question = -64.64;
double answer;
answer = cbrt(question);
printf("The cube root of %.2f is %.6f\n", question, answer);
}
The cube root of -64.64 is -4.013289
.NET Framework Equivalent
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.